پیوندهای مفید
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| تعداد نشریات | 21 |
| تعداد شماره‌ها | 641 |
| تعداد مقالات | 9,370 |
| تعداد مشاهده مقاله | 68,048,873 |
| تعداد دریافت فایل اصل مقاله | 30,809,869 |
گذردهی خطای مدار باز کلید نیمه هادی در اینورتر چندسطحی ضربدری با سلول پشتیبان با استفاده از روش کنترل پیش بین مبتنی بر مدل | ||
| مدل سازی در مهندسی | ||
| دوره 23، شماره 80، فروردین 1404، صفحه 233-249 اصل مقاله (1.48 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22075/jme.2024.32732.2588 | ||
| نویسندگان | ||
| فرزانه اصلانی گزنق؛ یوسف نیشابوری* ؛ محمد فرهادی کنگرلو | ||
| دانشکده مهندسی برق و کامپیوتر، دانشگاه ارومیه، ارومیه، ایران | ||
| تاریخ دریافت: 01 دی 1402، تاریخ بازنگری: 31 اردیبهشت 1403، تاریخ پذیرش: 22 خرداد 1403 | ||
| چکیده | ||
| روند رو به رشد استفاده از مبدل‌های چندسطحی در کاربردهای توان بالا، ضرورت توجه به قابلیت اطمینان و تحمل‌پذیری خطا در این مبدل‌ها را افزایش داده است. از این رو در این پژوهش، عملکرد اینورتر ضربدری که از روش کنترل پیش‌بین مبتنی بر مدل برای کلیدزنی بهره می‌برد، در شرایط وقوع خطای مدارباز در هر یک از کلیدهای نیمه‌های موجود در ساختار مبدل مورد بررسی قرار گرفته و رویکردی برای بهبود بهره‌برداری از ظرفیت آن در شرایط پس از خطا پیشنهاد شده است. به این منظور، ابتدا روشی برای تشخیص و جایابی خطای مدارباز با استفاده از انحراف ولتاژ انداز‌‌گیری شده نسبت به ولتاژ مرجع پیشنهاد شده و سپس با تعریف شاخص‌های خطا بر اساس وضعیت سیگنال خطا در هنگام تولید سطوح ولتاژ مختلف در مدت زمان یک سیکل پس از تشخیص خطا، کلید معیوب شناسایی می‌شود. در این روش از حداقل تعداد سنسورهای ولتاژ و جریان استفاده می‌شود. سپس به منظور دستیابی به حداکثر ولتاژ خروجی در شرایط پس از خطا، پیشنهاد می‌شود یک سلول ضربدری با لینک خازنی به عنوان سلول پشتیبان در ساختار مبدل تعبیه شود. در نهایت، صحت و کارایی روش‌های پیشنهادی بر روی اینورتر نه-سطحی ضربدری از طریق شبیه‌سازی در محیط MATLAB/SIMULINK تایید شده است. | ||
| کلیدواژه‌ها | ||
| مبدل چندسطحی؛ خطای مدارباز؛ شناسایی خطا؛ تحمل‌پذیری خطا؛ مبدل ضربدری؛ کنترل پیش‌بین مبتنی بر مدل | ||
| عنوان مقاله [English] | ||
| Ride-Through of Semiconductor Switch Open-Circuit Failure in Cross Switched Multilevel Inverter with Back-Up Cell Using Model Predictive Control Method | ||
| نویسندگان [English] | ||
| Farzaneh Aslani-Gaznag؛ Yousef Neyshabouri؛ Mohammad Farhadi-Kangarlu | ||
| Faculty of Electrical and Computer Engineering, Urmia University, Urmia, Iran | ||
| چکیده [English] | ||
| The increasing trend in the use of multilevel converters for high-power applications has emphasized the significance of reliability and fault tolerance in these systems. In this research, Model Predictive Control (MPC) has been developed to generate the switching commands for the cross-switched inverter. The performance of the inverter is investigated under conditions where an open-circuit fault occurs in any of its switches. Additionally, an approach has been proposed to enhance the utilization of the capacity of the inverter in post-fault operation. For this purpose, first, a fault detection method is presented to identify the open-switch fault by measuring the deviation of measured voltage from the reference voltage. Then, by defining fault indices and monitoring their conditions during one cycle after fault detection, the faulty switch is also identified. This method uses the minimum number of voltage and current sensors. Also, to achieve the maximum possible output voltage under post-fault conditions, it is proposed to embed a cross-switched cell with capacitive links in the converter structure as an auxiliary cell. Finally, the accuracy and effectiveness of the proposed methods are verified through the simulation of a nine-level cross-switched inverter in the MATLAB/SIMULINK environment. | ||
| کلیدواژه‌ها [English] | ||
| Multilevel inverter, Open-Circuit fault, Fault detection, Fault tolerance, Cross-Switched converter, Model Predictive Control (MPC) | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 148 تعداد دریافت فایل اصل مقاله: 170 |
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